<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <style>
      :root {
        /* 颜色 */
        --white: #e9e9e9;
        --gray: #333;
        --blue: #095c91;
        --blue-r: #315a7491;
        --lightblue: #0393a3;
        /* 圆角 */
        --button-radius: 0.7rem;
        /* 大小 */
        --max-width: 758px;
        --max-height: 420px;
        font-size: 16px;
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
      }
      body {
        align-items: center;
        background-color: var(--white);
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        background-size: cover;
        display: grid;
        height: 100vh;
        place-items: center;
      }
      .form_title {
        font-weight: 300;
        margin: 0;
        margin-bottom: 1.25rem;
      }
      .link {
        color: var(--gray);
        font-size: 0.9rem;
        margin: 1.5rem 0;
        text-decoration: none;
      }
      .container {
        background-color: var(--white);
        border-radius: var(--button-radius);
        box-shadow: 0 0.9rem 1.7rem rgba(0, 0, 0, 0.25),
          0 0.7rem 0.7rem rgba(0, 0, 0, 0.22);
        height: var(--max-height);
        max-width: var(--max-width);
        overflow: hidden;
        position: relative;
        width: 100%;
      }
      .container_form {
        height: 100%;
        position: absolute;
        top: 0;
        transition: all 0.6s ease-in-out;
      }
      .container--signin {
        left: 0;
        width: 50%;
        z-index: 5;
      }
      .container.right-panel-active .container--signin {
        transform: translateX(100%);
      }
      .container--signup {
        left: 0;
        opacity: 0;
        width: 50%;
        z-index: 4;
      }
      .container.right-panel-active .container--signup {
        -webkit-animation: show 0.6s;
        animation: show 0.6s;
        opacity: 1;
        transform: translateX(100%);
        z-index: 8;
      }
      .container_overlay {
        height: 100%;
        left: 50%;
        overflow: hidden;
        position: absolute;
        top: 0;
        transition: transform 0.6s ease-in-out;
        width: 50%;
        z-index: 100;
      }
      .container.right-panel-active .container_overlay {
        transform: translateX(-100%);
      }
      .overlay {
        background-color: rgba(255, 255, 255, 0.25);
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        background-size: cover;
        height: 100%;
        left: -100%;
        position: relative;
        transform: translateX(0);
        transition: transform 0.6s ease-in-out;
        width: 200%;
      }
      .container.right-panel-active .overlay {
        transform: translateX(50%);
      }
      .overlay_panel {
        align-items: center;
        display: flex;
        flex-direction: column;
        height: 100%;
        justify-content: center;
        position: absolute;
        text-align: center;
        top: 0;
        transform: translateX(0);
        transition: transform 0.6s ease-in-out;
        width: 50%;
      }
      .overlay--left {
        transform: translateX(-20%);
      }
      .container.right-panel-active .overlay--left {
        transform: translateX(0);
      }
      .overlay--right {
        right: 0;
        transform: translateX(0);
      }
      .container.right-panel-active .overlay--right {
        transform: translateX(20%);
      }
      .btn {
        background-color: var(--blue);
        background-image: linear-gradient(
          90deg,
          var(--blue) 0%,
          var(--lightblue) 74%
        );
        border-radius: 20px;
        border: 0.2px solid var(--blue-r);
        color: var(--white);
        cursor: pointer;
        font-size: 0.8rem;
        font-weight: bold;
        letter-spacing: 0.1rem;
        padding: 0.9rem 4rem;
        text-transform: uppercase;
        transition: transform 80ms ease-in;
      }
      .form > .btn {
        margin-top: 1.5rem;
      }
      .btn:active {
        transform: scale(0.95);
      }
      .btn:focus {
        outline: none;
      }
      .form {
        background-color: var(--white);
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        padding: 0 3rem;
        height: 100%;
        text-align: center;
      }
      .input {
        background-color: #fff;
        border: none;
        padding: 0.9rem 0.9rem;
        margin: 0.5rem 0;
        width: 100%;
      }
      @-webkit-keyframes show {
        0%,
        49.99% {
          opacity: 0;
          z-index: 4;
        }
        50%,
        100% {
          opacity: 1;
          z-index: 8;
        }
      }
      @keyframes show {
        0%,
        49.99% {
          opacity: 0;
          z-index: 4;
        }
        50%,
        100% {
          opacity: 1;
          z-index: 8;
        }
      }
      .slidershow {
        position: absolute;
        width: 100vw;
        height: 100vh;
        overflow: hidden;
      }
      .slidershow--image {
        position: absolute;
        width: 100%;
        height: 100%;
        background: no-repeat 50% 50%;
        background-size: cover;
        -webkit-animation-name: kenburns;
        animation-name: kenburns;
        -webkit-animation-timing-function: linear;
        animation-timing-function: linear;
        -webkit-animation-iteration-count: infinite;
        animation-iteration-count: infinite;
        -webkit-animation-duration: 16s;
        animation-duration: 16s;
        opacity: 1;
        -webkit-transform: scale(1.2);
        transform: scale(1.2);
      }
      .slidershow--image:nth-child(1) {
        -webkit-animation-name: kenburns-1;
        animation-name: kenburns-1;
        z-index: 3;
      }
      .slidershow--image:nth-child(2) {
        -webkit-animation-name: kenburns-2;
        animation-name: kenburns-2;
        z-index: 2;
      }
      .slidershow--image:nth-child(3) {
        -webkit-animation-name: kenburns-3;
        animation-name: kenburns-3;
        z-index: 1;
      }
      .slidershow--image:nth-child(4) {
        -webkit-animation-name: kenburns-4;
        animation-name: kenburns-4;
        z-index: 0;
      }
      @-webkit-keyframes kenburns-1 {
        0% {
          opacity: 1;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        1.5625% {
          opacity: 1;
        }
        23.4375% {
          opacity: 1;
        }
        26.5625% {
          opacity: 0;
          -webkit-transform: scale(1);
          transform: scale(1);
        }
        100% {
          opacity: 0;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        98.4375% {
          opacity: 0;
          -webkit-transform: scale(1.21176);
          transform: scale(1.21176);
        }
        100% {
          opacity: 1;
        }
      }
      @keyframes kenburns-1 {
        0% {
          opacity: 1;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        1.5625% {
          opacity: 1;
        }
        23.4375% {
          opacity: 1;
        }
        26.5625% {
          opacity: 0;
          -webkit-transform: scale(1);
          transform: scale(1);
        }
        100% {
          opacity: 0;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        98.4375% {
          opacity: 0;
          -webkit-transform: scale(1.21176);
          transform: scale(1.21176);
        }
        100% {
          opacity: 1;
        }
      }
      @-webkit-keyframes kenburns-2 {
        23.4375% {
          opacity: 1;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        26.5625% {
          opacity: 1;
        }
        48.4375% {
          opacity: 1;
        }
        51.5625% {
          opacity: 0;
          -webkit-transform: scale(1);
          transform: scale(1);
        }
        100% {
          opacity: 0;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
      }
      @keyframes kenburns-2 {
        23.4375% {
          opacity: 1;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        26.5625% {
          opacity: 1;
        }
        48.4375% {
          opacity: 1;
        }
        51.5625% {
          opacity: 0;
          -webkit-transform: scale(1);
          transform: scale(1);
        }
        100% {
          opacity: 0;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
      }
      @-webkit-keyframes kenburns-3 {
        48.4375% {
          opacity: 1;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        51.5625% {
          opacity: 1;
        }
        73.4375% {
          opacity: 1;
        }
        76.5625% {
          opacity: 0;
          -webkit-transform: scale(1);
          transform: scale(1);
        }
        100% {
          opacity: 0;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
      }
      @keyframes kenburns-3 {
        48.4375% {
          opacity: 1;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        51.5625% {
          opacity: 1;
        }
        73.4375% {
          opacity: 1;
        }
        76.5625% {
          opacity: 0;
          -webkit-transform: scale(1);
          transform: scale(1);
        }
        100% {
          opacity: 0;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
      }
      @-webkit-keyframes kenburns-4 {
        73.4375% {
          opacity: 1;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        76.5625% {
          opacity: 1;
        }
        98.4375% {
          opacity: 1;
        }
        100% {
          opacity: 0;
          -webkit-transform: scale(1);
          transform: scale(1);
        }
      }
      @keyframes kenburns-4 {
        73.4375% {
          opacity: 1;
          -webkit-transform: scale(1.2);
          transform: scale(1.2);
        }
        76.5625% {
          opacity: 1;
        }
        98.4375% {
          opacity: 1;
        }
        100% {
          opacity: 0;
          -webkit-transform: scale(1);
          transform: scale(1);
        }
      }
    </style>
    <div class="container right-panel-active">
      <!-- 注册 -->
      <div class="container_form container--signup">
        <form action="#" class="form" id="form1">
          <h2 class="form_title">注册</h2>
          用户名：<input type="text" id="name" /> 密码：<input
            type="text"
            id="pwd"
          />
          邮箱：<input type="text" id="yx" />
          <br>
          <button id="btn1">注册</button>
        </form>
      </div>

      <!-- 登录 -->
      <div class="container_form container--signin">
        <form action="#" class="form" id="form2">
          <h2 class="form_title">登录</h2>
          用户名：<input type="text" id="names" /><br />
          密 码：<input type="text" id="pwds" />
          <br>
          <button id="btn">登录</button>
        </form>
      </div>

      <!-- 浮层 -->
      <div class="container_overlay">
        <div class="overlay">
          <div class="overlay_panel overlay--left">
            <button class="btn" id="signIn">登录</button>
          </div>
          <div class="overlay_panel overlay--right">
            <button class="btn" id="signUp">注册</button>
          </div>
        </div>
      </div>
    </div>

    <!-- 背景 -->
    <div class="slidershow">
      <div
        class="slidershow--image"
        style="background-image: url('https://source.unsplash.com/Snqdjm71Y5s')"
      ></div>
      <div
        class="slidershow--image"
        style="background-image: url('https://source.unsplash.com/5APj-fzKE-k')"
      ></div>
      <div
        class="slidershow--image"
        style="background-image: url('https://source.unsplash.com/wnbBH_CGOYQ')"
      ></div>
      <div
        class="slidershow--image"
        style="background-image: url('https://source.unsplash.com/OkTfw7fXLPk')"
      ></div>
    </div>

    <!-- partial -->
  </body>
  <script>
    const signInBtn = document.getElementById("signIn");
    const signUpBtn = document.getElementById("signUp");
    const firstForm = document.getElementById("form1");
    const secondForm = document.getElementById("form2");
    const container = document.querySelector(".container");

    signInBtn.addEventListener("click", () => {
      container.classList.remove("right-panel-active");
    });

    signUpBtn.addEventListener("click", () => {
      container.classList.add("right-panel-active");
    });

    firstForm.addEventListener("submit", (e) => e.preventDefault());
    secondForm.addEventListener("submit", (e) => e.preventDefault());
    window.onload = function () {
      signInBtn.click();
      btn.onclick = fun;
      btn1.onclick = fun1;
    };
    //注册
    function fun1() {
      let username = document.getElementById("name").value,
        password = document.getElementById("pwd").value;
      email = document.getElementById("yx").value;
      console.log(123);
      let httpAjax = new XMLHttpRequest();
      httpAjax.onreadystatechange = function () {
        if (httpAjax.readyState === 4 && httpAjax.status === 200) {
          let res = JSON.parse(httpAjax.responseText);
          if (res.code == 200) {
            alert("注册成功");
            signInBtn.click();
          }
          if(res.code == -1){
            alert('未注册')
          }
        }
      };

      httpAjax.open("POST", " https://liu.zzgoodqc.cn/register", true);
      httpAjax.setRequestHeader(
        "Content-type",
        "application/x-www-form-urlencoded"
      );
      httpAjax.send(
        "username=" + username + "&password=" + password + "&email=" + email
      );
    }
    //登录
    function fun() {
      let usernames = document.getElementById("names").value,
        passwords = document.getElementById("pwds").value;

      let httpAjax = new XMLHttpRequest();
      httpAjax.onreadystatechange = function () {
        if (httpAjax.readyState === 4 && httpAjax.status === 200) {
          let res = JSON.parse(httpAjax.responseText);
          if (res.code == 200) {
            alert("登录成功");
            window.open("11.9作业2.html");
          }
          if (res.code == -1) {
            alert("用户名密码错误");
            signUpBtn.click();
          }
        }
      };
      httpAjax.open("POST", "https://liu.zzgoodqc.cn/login", true);
      httpAjax.setRequestHeader(
        "Content-type",
        "application/x-www-form-urlencoded"
      );
      httpAjax.send("username=" + usernames + "&password=" + passwords);
    }
  </script>
</html>
